Neil Meron has shared the first official image of "Girls" star and classically trained singer Allison Williams, as the iconic title character in NBC's Dec. 4 telecast of "Peter Pan Live!" Check it out at left!

Williams, who has sung on HBO's "Girls" and in various other projects, is an accomplished actress and singer. Since graduating from Yale University in 2010, she has starred as Marnie Michaels on the twice Emmy Award-nominated and Golden Globe-winning "Girls."

Williams recorded several songs (as Marnie) for the "Girls" soundtrack, and videos of her singing online that she made prior to "Girls" have gained millions of views. Williams has also appeared on "The Mindy Project" and "The League."

"I have wanted to play Peter Pan since I was about three years old, so this is a dream come true," said Williams. "It's such an honor to be a part of this adventure, and I'm very excited to get to work with this extraordinarily talented team. And besides," added Williams, "what could go wrong in a live televised production with simultaneous flying, sword fighting and singing?"

Williams appeared on this morning's TODAY on NBC from the studio where final auditions for the supporting cast are taking place. "It's an absolute dream come true," gushes the actress of her starring role. Check out the appearance below:

NBC's PETER PAN LIVE, the network special from executive producers Craig Zadan and Neil Meron, will air on December 4. Preparing to sprinkle fairy dust across America, NBC presents a bold new LIVE television production of the classic Broadway musical that will gather friends, families and anyone who refuses to ever grow up.

Following in the footsteps of the phenomenally successful THE SOUND OF MUSIC LIVE! -- which drew over 18 million viewers -- comes this musical masterpiece that tells the beloved story of Peter Pan, the mischievous little boy who ran away to Neverland. Get ready for show-stopping stars, stunning costumes, extravagant sets and delightful music that will have everyone in your home singing along.